For this reason, the authors have been studying the development of a simple design for a gas forced cooling, large-capacity gas-insulated transformer. This paper discusses research and development of ...

It started late on the evening of March 20 when a bang broke the reassuring hum at the North Hyde electricity substation near Heathrow Airport. One of the plant’s two “supergrid” transformers – giant ...

The 275 kilovolt (kV) transformer blamed for the blaze was one of two installed when the substation was itself built in 1968, and manufactured by Hackbridge and Hewittic, ...

Last year, we solved those problems by developing a PCM current differential relaying system using fiber-optic data transmission. This system has been installed and operation has started on the 275 KV ...